Hahaha
No.1 EU PISA Maths Test : Guinea PigsĀ
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Maths good only let youĀ think logically but the natureĀ does not work this way.
Learn I Ching better, let you find good solution when you are in a difficult stage in life.
Thatās the past. Now learn math is also must A1 in Ang moh, otherwise you canāt understand what is the question asking